EP1551325B1 - Mechanisme de serrage de matrice dentaire - Google Patents

Mechanisme de serrage de matrice dentaire Download PDF

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Publication number
EP1551325B1
EP1551325B1 EP03747953A EP03747953A EP1551325B1 EP 1551325 B1 EP1551325 B1 EP 1551325B1 EP 03747953 A EP03747953 A EP 03747953A EP 03747953 A EP03747953 A EP 03747953A EP 1551325 B1 EP1551325 B1 EP 1551325B1
Authority
EP
European Patent Office
Prior art keywords
matrix
drive
spindle
housing
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03747953A
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German (de)
English (en)
Other versions
EP1551325A1 (fr
Inventor
Alfred Schaffner
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Individual
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Individual
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Publication date
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Publication of EP1551325A1 publication Critical patent/EP1551325A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
    • A61C5/85—Filling bands, e.g. matrix bands; Manipulating tools therefor

Definitions

  • the invention relates to a dental matrix tensioner as an aid in the backfilling of two-sided molar tooth recesses with a die holder and a device for clamping a placed in the form of an eyelet around the tooth to be treated matrix band, wherein the die holder from a housing with a circular opening and a in this Opening rotatable and provided with a gap, spindle-like inner body, whose gap is aligned with a slot in the wall of the housing, so that the matrix band with its superimposed ends in this slot and the aligned on him slot and inserted by turning the inner body on Tooth is tensionable.
  • template tensioners are used to tighten a matrix band that is placed around a patient's tooth to be filled, thereby providing form and support to the filling then placed in the drilled tooth until the material has cured.
  • a matrix tensioner consists of a sleeve, in the cavity of which two wedge-shaped plates slidably project as a clamping device.
  • the plates for the most part protrude from the sleeve, their opposite surfaces are spaced, so that the superimposed ends of a matrix band can be inserted.
  • the so formed loop of the matrix band is placed around the tooth to be filled, it is tightened by the sleeve is pushed by hand in the direction of the eyelet, wherein the Close clamping plates and finally be wedged in the sleeve.
  • US-PS 4,824,365 a matrix band is described with tensioning device, which remain permanently connected to each other.
  • the clamping device consists of a ring made of a permanently deformable material. In this ring two opposing slots are provided, through which the ends of the matrix band are guided. In the eyelet of the matrix band facing away from the slot of the clamping ring, the die ends are connected to this firmly and permanently.
  • the eyelet When the eyelet is placed around the tooth, it is tightened by lateral compression and permanent deformation of the tension ring, with its eyelet-facing slot sliding on the die band, thus narrowing the eyelet.
  • the matrix band must then be alone through the clamping ring and the tension applied by its deformation is held on the tooth for the duration of the further treatment. A really secure seat is not guaranteed.
  • the Matricespanner described in DE 197 38 189 A1 is constructed in two parts and consists of a clamping wrench and a pliers-shaped die holder whose gripping arms are connected at one end hingedly connected to a web and a pre-bent leaf spring which holds the gripping arms open in a relaxed state.
  • a screw is fixedly connected to the web and protrudes through an opening in the leaf spring. At its free end, it can be grasped and twisted by the wrench, whereby the leaf spring is compressed and the free ends of the gripping arms, on which a matrix band has been previously fixed, are closed in a pincer movement.
  • the wrench can be removed for further treatment first and comes again for the release of the die holder used.
  • a matrix tensioner consists of a ring in which a pin is arranged coaxially and rotatably. Both the ring and the pin are provided with a slot through which the superimposed ends of a matrix band are inserted. Turn the pin to tighten the matrix band.
  • the handling of the device is not very comfortable and requires skill; The dentist must also work here entirely within the mouth of his patient when turning the pen, so that the ring comprising the pen last in direct and fixed contact with the tooth, the punctiform investment of the ring on the tooth is unfavorable. From DE 641005 a dental Matrizenpanner according to the preamble of claim 1 is known.
  • the object of the invention is to provide a Matrizenpanner with which a matrix band can be tightened with a precisely metered train to a tooth that is safe and comfortable to use and acts as little disturbing or obstructive in the further dental treatment.
  • the laterally guided drive for turning the spindle allows a precise operation of the Matrizenpanners outside the mouth.
  • the dentist does not have to do any tightening after setting the matrix adjuster on the tooth working in the mouth of his patient and can closely observe and control the tensioning process.
  • the gear at the upper end of the spindle a crown gear, which is engageable with a drive device belonging to the drive pinion into engagement, which is rotatable about the laterally led out drive shaft.
  • the matrix band can be tightened very precisely and with precisely measured tension on the tooth.
  • the drive device for the spindle in its simplest embodiment consists only of the drive shaft, which carries at one end the drive pinion, which can be brought into engagement with the crown gear, so that by rotating the drive shaft, the spindle is rotated in the housing to the die band to stretch. If the drive pinion is slightly beveled on its front side, it can be better inserted into the crown gear.
  • the drive shaft is rotatable with the aid of an opposite end of the drive pinion rotary knob within a tubular sleeve, protrudes from the below the drive pinion a holding fork to the front, under a laterally projecting at the upper end of the housing of the die holder edge can be pushed, wherein the drive pinion engages with the crown gear of the spindle.
  • the drive device thus has a better grip on the die holder during the clamping process.
  • the drive device can be released from engagement and set aside, so that it is not disturbing in the further dental treatment.
  • the drive device may consist of a drive worm engaging with the gear wheel of the spindle, which can be rotated via the laterally guided drive shaft.
  • the Matrizenpanner invention can be inexpensively made of plastic and preferably as disposable or disposable items, so that all hygienic requirements is met; It also gives it a very light weight, which makes its use comfortable for the patient and the dentist. It is also conceivable to make only the die holder as a disposable item and the drive device reusable.
  • FIG. 1 shows a perspective view of a preferred embodiment of the matrix tensioner 1 according to the invention with an inserted matrix band 2.
  • Fig. 2 shows enlarged again the head of the same Matrizenpanners 1 without Matrizenband. It consists essentially of a die holder 3 (see also FIG. 4) and a drive device 4.
  • the die holder 3 consists, as is known, of a housing 5, which on its front surface a vertically extending, preferably concaved contact surface. 6 for a tooth; The radius of the concavity is adapted accordingly and can be advantageous for about 2 mm. It has been found that it is also sufficient if the contact surface 6 is formed by two mutually tapered slopes 6 ', 6 "with a depth of about 2 mm.
  • the housing 5 has at its upper end a generally protruding edge 7 and has a central, vertically continuous, circular opening 8, in which a spindle 9 (see Fig. 6a to 6c) can be used.
  • a spindle 9 see Fig. 6a to 6c
  • the spindle 9 has a cylindrical base body 11, which is open by a deep gap 12 open to one side to about 2/3 of its length is halved.
  • the spindle 9 carries a stepped crown gear 13 by a step 14.
  • the spindle 9 When the spindle 9 is inserted into the circular opening 8 of the housing 5, its gap 12 can be on the slot 10 in the housing wall align.
  • a portion of the spindle 9 may be provided between the gap 12 and the crown gear 13 with a corrugation 15, which serves to adjust the torque, so that the matrix band 2 can not solve the intended use.
  • the drive device 4 consists initially in its simplest embodiment of a drive shaft 16 which carries at its one end a drive pinion 17 which can be brought into engagement with the crown gear 13 of the spindle 9.
  • the drive pinion 17 is tapered conically on its end face (see FIG. 5). By this slight bevel 18, the drive pinion 17 can be better introduced into the crown gear 13.
  • the drive shaft 16 with the aid of an opposite end of the drive pinion 17 provided rotary knob 19 within a tubular sleeve 20 is rotatable. From this sleeve 20 protrudes below the drive pinion 17 from a holding fork 21 from the front, with which the drive device 4 can be pushed under the edge 7 of the housing 5 of the die holder 3, wherein the drive pinion 17 engages with the crown gear 13 of the spindle.
  • the ends of the matrix band become 2 placed in a known manner and pushed together through the slot 10 of the die holder and aligned on the slot 10 gap 12 of the spindle 9, as shown in FIG. 1 can be seen.
  • the ramps 6 ', 6 "of the abutment surface 6 tapering towards the slot 10 facilitate the insertion of the matrix band 2.
  • the matrix band 2 thereby forms a round eyelet 22, which is pushed over the relevant tooth Spindle 9 is introduced and rotated about its own axis by rotating the drive shaft 16 in the housing 5.
  • the matrix belt 2 is pulled through the slot 10 and the gap 12 in the tensioning device and wound around the spindle 9, so that the eyelet 22 contracts
  • the width of the eyelet 22 or the tension with which the matrix band 2 lies around the tooth can be controlled and adjusted very precisely by the actuation of the drive shaft 16.
  • a spontaneous loosening of the Matrizenbandes 2 during further treatment is not possible, it is in particular prevented by the above-mentioned corrugation 15 on the spindle 9.
  • the drive device 4 can be released from engagement with the crown gear 13 and set aside so that it does not interfere with the further treatment. In the patient's mouth, only the die holder 3 and the die band 2 remain for the duration of the further treatment.
  • Housing 5 and spindle 9 of the die holder 3 are preferably formed as disposable or disposable articles and are after treatment together with the matrix band. 2 disposed of.
  • the drive device 4 may be reusable, if desired.
  • FIG. 7 shows an embodiment of the matrix tensioner 1 in which the drive device 4 is designed as a worm drive 23.
  • the drive device 4 is designed as a worm drive 23.
  • On the opposite side of the contact surface 6 are on the housing 5 to the rear and above elongated, wing-like projections 24 are formed in which round, upwardly open recesses 25 are provided as a bearing for the drive shaft 16 of a drive screw 26.
  • the drive worm 26 comes to lie between the bearings formed on the extensions 24 bearings and is brought into engagement with a mounted on the spindle 9 gear 27. The operation is otherwise the same as described above.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Preparations (AREA)

Claims (7)

  1. Dispositif de serrage de matrice dentaire servant d'aide pour le remplissage de cavités dièdres dans des molaires, comprenant un porte-matrice (3) et un dispositif d'entraînement (4) pour serrer une bande-matrice (2) placée en forme d'oeillet (22) autour de la dent à traiter, le porte-matrice (3) se composant d'un boîtier (5) avec une ouverture ronde circulaire (8) et d'une broche (9) pouvant tourner dans cette ouverture (8) et pourvue d'un interstice (12), cet interstice (12) pauvant être aligné avec une fente (10) dans la paroi du boîtier (5), de sorte que la bande-matrice (2) puisse être insérée avec ses extrémités placées l'une sur l'autre dans cette fente et dans l'interstice aligné avec elle et puisse être serrée sur la dent par rotation de la broche,
    caractérisé en ce que
    l'on prévoit une roue dentée (13, 27) à l'extrémité supérieure de la broche (9) dépassant de l'ouverture ronde circulaire (8) du boîtier (5), laquelle peut être amenée en prise avec le dispositif d'entraînement (4) qui présente un arbre d'entraînement (16) ressorti latéralement.
  2. Dispositif de serrage de matrice selon la revendication 1, caractérisé en ce que le dispositif de serrage de matrice est construit en deux parties et se compose du porte-matrice (3) et d'un dispositif d'entraînement (4) séparé, pouvant être appliqué latéralement sur le porte-matrice (3) et pouvant à nouveau en être détaché, lequel comprend un arbre d'entraînement dépassant latéralement (16) et un pignon d'entraînement (17) disposé à une extrémité de cet arbre d'entraînement (16), lequel peut être amené en et hors d'engagement avec la roue dentée (13) de la broche (9) dépassant vers le haut hors du boîtier (5) du porte-matrice (3).
  3. Dispositif de serrage de matrice selon la revendication 1, caractérisé en ce que la roue dentée à l'extrémité supérieure de la broche (9) est une couronne dentée (13), qui peut être amenée en prise avec un pignon d'entraînement (17) appartenant au dispositif d'entraînement (4), lequel peut tourner par le biais de l'arbre d'entraînement (16) ressorti latéralement.
  4. Dispositif de serrage de matrice selon la revendication 1, caractérisé en ce que le dispositif d'entraînement (4) se compose de l'arbre d'entraînement (16) et du pignon d'entraînement (17) disposé sur l'une de ses extrémités.
  5. Dispositif de serrage de matrice selon la revendication 2, caractérisé en ce que le pignon d'entraînement (17) est légèrement biseauté au niveau d'un côté frontal.
  6. Dispositif de serrage de matrice selon la revendication 1, caractérisé en ce que l'arbre d'entraînement (16) peut tourner, à l'aide d'un bouton tournant (19) prévu sur l'extrémité opposée au pignon d'entraînement (17), à l'intérieur d'un manchon tubulaire (20), depuis lequel une fourche de maintien (21) dépasse vers l'avant en dessous du pignon d'entraînement (17), laquelle peut être poussée sous un bord (7) dépassant latéralement à l'extrémité supérieure du boîtier (5).
  7. Dispositif de serrage de matrice selon la revendication 1, caractérisé en ce que le dispositif d'entraînement (4) se compose d'une vis sans fin d'entraînement (26) en prise avec la roue dentée (27) de la broche (9), qui peut tourner par le biais d'un arbre d'entraînement (16) ressorti latéralement.
EP03747953A 2002-09-04 2003-09-03 Mechanisme de serrage de matrice dentaire Expired - Lifetime EP1551325B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10240683 2002-09-04
DE10240683A DE10240683B4 (de) 2002-09-04 2002-09-04 Zahnärztlicher Matrizenspanner
PCT/EP2003/009741 WO2004021919A1 (fr) 2002-09-04 2003-09-03 Porte-matrice de medecine dentaire

Publications (2)

Publication Number Publication Date
EP1551325A1 EP1551325A1 (fr) 2005-07-13
EP1551325B1 true EP1551325B1 (fr) 2006-01-11

Family

ID=31895636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747953A Expired - Lifetime EP1551325B1 (fr) 2002-09-04 2003-09-03 Mechanisme de serrage de matrice dentaire

Country Status (8)

Country Link
US (1) US7322823B2 (fr)
EP (1) EP1551325B1 (fr)
JP (1) JP2005537103A (fr)
AT (1) ATE315361T1 (fr)
AU (1) AU2003267033A1 (fr)
DE (2) DE10240683B4 (fr)
ES (1) ES2256770T3 (fr)
WO (1) WO2004021919A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005003807B4 (de) * 2005-01-27 2006-10-26 Alfred Schaffner Antriebsvorrichtung für einen zahnärztlichen Matrizenspanner
GB0820074D0 (en) * 2008-11-01 2008-12-10 Astek Innovations Ltd Dental matrix clamp
DE202009018021U1 (de) 2009-04-14 2011-01-20 Mömken, Henrik, Dr. Matrizen-Spannvorrichtung für die Dentalmedizin
DE202009018022U1 (de) 2009-04-14 2010-11-11 Mömken, Henrik, Dr. Matrizen-Spannvorrichtung für die Dentalmedizin
WO2014070790A1 (fr) * 2012-10-31 2014-05-08 Colton Crane Système et procédés de retrait d'une dent mobile
CA3014640C (fr) * 2016-02-23 2023-11-21 Dentsply Sirona Inc. Systeme de matrice circonferentielle
USD792594S1 (en) * 2016-05-10 2017-07-18 Dentsply Sirona Inc. Circumferential matrix system
US11786338B2 (en) * 2020-08-28 2023-10-17 Medicom Group Inc. Dental band device
USD966525S1 (en) * 2020-10-19 2022-10-11 Robyn B. Lesser Dental posterior matrix

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE645966C (de) 1937-06-05 Ewald Schoetz Bandmatrize mit Spannvorrichtung
DE641005C (de) * 1932-05-19 1937-01-20 Ewald Schoetz Spannvorrichtung fuer Bandmatrizen zum Plombieren von Zaehnen
US3383769A (en) * 1965-10-22 1968-05-21 Rocky Mountain Dental Products Lance matrix band clamp for dental purposes
US3812585A (en) * 1971-03-11 1974-05-28 J Balson Dental matrix band and clamp assembly
US3795981A (en) * 1973-01-11 1974-03-12 Dento Dynamic Syst Inc Dental retainer
US3829975A (en) * 1973-11-28 1974-08-20 J Balson Dental matrix band and clamp
US4396374A (en) * 1982-09-07 1983-08-02 Ericson Dan V Matrix band retainers
EP0227590A1 (fr) * 1985-12-19 1987-07-01 Hawe-Neos Dental Dr. H. von Weissenfluh S.A. Porte-matrice pour l'odontologie
CH670562A5 (fr) * 1987-05-14 1989-06-30 Weissenfluh Hawe Neos
PL173768B1 (pl) * 1992-10-28 1998-04-30 Weissenfluh Hawe Neos Przyrząd naprężający matrycę dentystyczną
DE69506480T2 (de) * 1994-06-21 1999-04-29 Weissenfluh Hawe Neos Spannvorrichtung für odontologische Anwendung
DE19738189C2 (de) * 1997-09-02 2000-06-15 Michael Steindorf Zahnärztlicher Matrizenspanner zur Verfüllung zweiflächiger Backenzahnausnehmungen
DK0910996T3 (da) 1997-10-27 2003-11-17 Geno Know How Sarnen Ag Indretning til fiksering og tilpasning af en matrice til tandbehandling

Also Published As

Publication number Publication date
WO2004021919A1 (fr) 2004-03-18
JP2005537103A (ja) 2005-12-08
ES2256770T3 (es) 2006-07-16
EP1551325A1 (fr) 2005-07-13
DE50302196D1 (de) 2006-04-06
DE10240683A1 (de) 2004-03-25
US20060003289A1 (en) 2006-01-05
DE10240683B4 (de) 2005-04-14
AU2003267033A1 (en) 2004-03-29
ATE315361T1 (de) 2006-02-15
US7322823B2 (en) 2008-01-29

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